load rialto in kernel mode

This makes rialto compatible with Gunyah, which currently
requires the payload to be loaded at the start of RAM.

Bug: 359659124
Bug: 355696053
Bug: 353758405
Test: atest rialto_test
Change-Id: Id83f4535600553f5715fe440cd411b66c229e8c2
diff --git a/guest/rialto/image.ld b/guest/rialto/image.ld
index 95ffdf8..3bf910c 100644
--- a/guest/rialto/image.ld
+++ b/guest/rialto/image.ld
@@ -16,6 +16,6 @@
 
 MEMORY
 {
-	image		: ORIGIN = 0x80200000, LENGTH = 2M
-	writable_data	: ORIGIN = 0x80400000, LENGTH = 2M
+	image		: ORIGIN = 0x80000000, LENGTH = 2M
+	writable_data	: ORIGIN = 0x80200000, LENGTH = 2M
 }